Labelmaster's Power Electrical Markers, measuring 19 x 12 in., are precoiled pipe markers that install quickly and easily. Simply uncurl one over a 3 1/4 - 5-in.-diameter pipe, release it, and it snaps into place. Letter height is 1 1/4 in. With their 360° wrap coverage encircling the pipe, they can be virtually read from any angle. The bold legend printed in black contrasts with the bright orange background, repeatedly upright and upside-down, for universal direction fit and visibility. These Snap Tite™ electrical markers are printed on heavy gauge, 20-mil, rigid vinyl plastic that is lightweight, yet durable to withstand tough industrial environments. The service temperature range is -4° - 158°F. There’s no need to clean off the pipes because the markers fit directly over dirty, greasy or rough surfaces, including insulation or other less-than-perfect surfaces. Our versatile markers can also be easily removed and reapplied, and help you stay in compliance with OSHA standards.